Looking at a bread filled with mold alongside a rotten ham on the breakfast table is disgusting. But how can we know the bacteria are working on our food if nothing weird being shown on surface?
Technology enables us to have a simple, non-destructive, contactless and rapid optical method for measuring living organisms in meat products utilizing laser speckle de-correlation. By simply measuring dynamic speckle intensity patterns reflected from samples and analyzing the temporal correlation time, the presence of living microorganism can be non-invasively detected with high sensitivity.
Scientists can now present a proof-of-principle demonstration for detecting E. Coli and Bacillus cereus in chicken breast tissue. Sooner or later we can have care-free consuming of food eliminating harmful material from entering our body.
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